(a) Find the least-squares regression line for males treating the number of licensed drivers as the explanatory variable, x, and the number of fatal crashes, y, as the response variable. Repeat this procedure for females. Find the least-squares regression line for males. =ロx+ロ (Round the slope to three decimal places and round the constant to the nearest integer as needed.) Find the least-squares regression line for females. y-ロ+ロ (Round the slope to three decimal places and round the constant to the nearest integer as needed.) (b) Interpret the slope of the least-squares regression line for each gender, if appropriate. How might an insurance company use this information? What is the correct interpretation of the slope of the least-squares regression line for males? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. If the number of fatal crashes increases by 1, then the number of male licensed drivers increases by thousand, on average. (Round to three decimal places as needed.) O B. If the number of male licensed drivers increases by 1 (thousand), then the number of fatal crashes increases by on average. (Round to three decimal places as needed.) O C. If the average age of all male licensed drivers increases by 1, then the number of fatal crashes increases by on average. (Round to three decimal places as needed.) O D. It does not make sense to interpret the slope. What is the correct interpretation of the slope of the least-squares regression line for females? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. If the average age of all female licensed drivers increases by 1, then the number of fatal crashes increases by (Round to three decimal places as needed.) on average. O B. If the number of female licensed drivers increases by 1 (thousand), then the number of fatal crashes increases by on average. (Round to three decimal places as needed.) O C. If the number of fatal crashes increases by 1, then the number of female licensed drivers increases by thousand, on average. (Round to three decimal places as needed.) O D. It does not make sense to interpret the slope.
(a) Find the least-squares regression line for males treating the number of licensed drivers as the explanatory variable, x, and the number of fatal crashes, y, as the response variable. Repeat this procedure for females. Find the least-squares regression line for males. =ロx+ロ (Round the slope to three decimal places and round the constant to the nearest integer as needed.) Find the least-squares regression line for females. y-ロ+ロ (Round the slope to three decimal places and round the constant to the nearest integer as needed.) (b) Interpret the slope of the least-squares regression line for each gender, if appropriate. How might an insurance company use this information? What is the correct interpretation of the slope of the least-squares regression line for males? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. If the number of fatal crashes increases by 1, then the number of male licensed drivers increases by thousand, on average. (Round to three decimal places as needed.) O B. If the number of male licensed drivers increases by 1 (thousand), then the number of fatal crashes increases by on average. (Round to three decimal places as needed.) O C. If the average age of all male licensed drivers increases by 1, then the number of fatal crashes increases by on average. (Round to three decimal places as needed.) O D. It does not make sense to interpret the slope. What is the correct interpretation of the slope of the least-squares regression line for females? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. If the average age of all female licensed drivers increases by 1, then the number of fatal crashes increases by (Round to three decimal places as needed.) on average. O B. If the number of female licensed drivers increases by 1 (thousand), then the number of fatal crashes increases by on average. (Round to three decimal places as needed.) O C. If the number of fatal crashes increases by 1, then the number of female licensed drivers increases by thousand, on average. (Round to three decimal places as needed.) O D. It does not make sense to interpret the slope.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 2CYU
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